Lethian Dreams is a French doom metal band, founded in 2002 by Carline Van Roos and Matthieu Sachs, also known for their work in the bands Aythis and Remembrance. Starting as an atmospheric doom metal band, Lethian Dreams evolved later to a more ethereal sound, adding elements from different musical styles. This has made it difficult to put an accurate label over Lethian Dreams's music. The band self describes its music as "ethereal doom metal" but elements from black metal, shoegaze or post-metal can also be found in their music.